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5. Such request is for information only, and is not an instruction to execute the <br />changes, nor to stop work in progress. <br />B. Contractor may initiate changes by submitting a written notice to Engineer, containing: <br />1. Description of the proposed changes <br />2. Statement of the reason for making the changes. <br />3. Statement of the effect on the Contract Sum and the Contract Time_ <br />4. Statement of the effect on the work of separate contractors. <br />5. Documentation supporting any changes in Contract Sum or Contract Time, as <br />appropriate. <br />1.05 CONSTRUCTION CHANGE AUTHORIZATION <br />A. In lieu of Proposal Request, Engineer may issue a "Work Directive Change" for <br />Contractor to proceed with a change for subsequent inclusion in a Change Order. <br />B. Authorization will describe changes in the work, both additions and deletions, with <br />attachments of revised Contract Documents to define details of the change. <br />C. Owner and Engineer will sign and date the Work Directive Change as authorization for <br />the Contractor to proceed with the Changes. <br />1.06 DOCUMENTATION OF PROPOSALS AND CLAIMS <br />A. Support each quotation for a lump sum proposal, and for each unit price which has not <br />previously been established, with sufficient substantiating data to allow Engineer to <br />evaluate the quotation. <br />B. On request, provide additional data to support time and cost computation including the <br />following: <br />L Labor required. <br />2. Equipment required. <br />3. Products required: <br />a. Recommended source of purchase and unit cost. <br />b. Quantities required. <br />4. Taxes, insurance bonds. <br />5. Credit for work deleted from Contract, similarly documented. <br />6. Overhead and profit. <br />7. Justification for any change in Contract Time, <br />C. Support each claim for additional costs, and for work done on a time -and -material / force <br />account basis, with documentation as required for a lump sum proposal, plus the <br />following additional information: <br />1. Name of the Owner's authorization agent who ordered the work, and date of the <br />order. <br />2. Dates and time work performed, and by whom <br />3. Time record, summary of hours worked, and hourly rates paid. <br />4. Receipts and invoices for: <br />a. Equipment used, listing dates and times of use. <br />b. Products used, listing quantities. <br />C. Subcontracts. <br />044572017 <br />01035-2 <br />